class_docstr: Tests correctness of the Y = g(X) = X transformation.
code: def testScalarCongruency(self):
      bijector = identity.Identity()
      bijector_test_util.assert_scalar_congruency(
          bijector, lower_x=-2.0, upper_x=2.0, eval_func=self.evaluate
      )
  
file_path: probability/tensorflow_probability/python/bijectors/identity_test.py
imports: import weakref
  import tensorflow.compat.v2
  from tensorflow_probability.python.bijectors import bijector_test_util
  from tensorflow_probability.python.bijectors import identity
  from tensorflow_probability.python.internal import test_util
label_desc: Use image node_id 2 for calling the IdentityTest obj's underlying member method code with example usage: obj.testScalarCongruency() without return types